package com.zaprk.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @PackageName: com.zaprk.filter
 * @ClassName: EncodeFilter
 * @Description:
 * @author: RZS
 * @date: 2023/3/16  14:47
 */
@WebFilter("*.do")
public class EncodeFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest)servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;

        // 解决请求与响应乱码
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=utf-8");
        response.setCharacterEncoding("utf-8");

        // 放行
        filterChain.doFilter(request, response);

    }

    @Override
    public void destroy() {

    }
}
